Maybe need a bit more ease because the real fabric is more bulky. From the videos and pics I see, the jacket also does not have lining, but I add it anyway.
Leather garments are probably sewn with simple seam reinforced with glue and topstitches. But I use felled seam in this toile for practice. Sewing the felled seam at the armhole is so tedious, I should use French seam instead. Another thing to consider is to use simple seam for the underarm, and different seam for the upper part.
You can download all the files here. The PDFs are for projector not printing.
